package com.atguigu.gulimall.ware.config;

import org.springframework.amqp.core.*;
import org.springframework.amqp.rabbit.annotation.RabbitListener;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.amqp.support.converter.MessageConverter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.HashMap;
import java.util.Map;

@Configuration
public class MyRabbitConfig {

    /**
     * 使用JSON序列化机制，进行消息转换
     */
    @Bean
    public MessageConverter messageConverter(){
        return new Jackson2JsonMessageConverter();
    }

    /*@RabbitListener(queues = "stock.release.stock.queue")
    public void handle(Message message){

    }*/

    @Bean
    public Exchange stockEventExchange(){
        /**
         * String name, 交换机名称
         * boolean durable, 是否持久化
         * boolean autoDelete, 是否自动删除
         * Map<String, Object> arguments 其他参数
         */
        return new TopicExchange("stock-event-exchange",true,false);
    }

    @Bean
    public Queue stockReleaseStockQueu(){
        /**
         * String name, 队列名称
         * boolean durable, 是否持久化
         * boolean exclusive, 是否排他
         * boolean autoDelete, 是否自动删除
         * @Nullable Map<String, Object> arguments 其他参数
         */
        return new Queue("stock.release.stock.queue",true,false,false);
    }

    @Bean
    public Queue stockDelayQueue(){
        Map<String,Object> arg=new HashMap<>();
        //死信路由
        arg.put("x-dead-letter-exchange","stock-event-exchange");
        //死信路由件
        arg.put("x-dead-letter-routing-key","stock.release");
        //消息过期时间
        arg.put("x-message-ttl",120000);
        return new Queue("stock.delay.queue",true,false,false,arg);
    }

    @Bean
    public Binding stockReleaseBinding(){
        /**
         * String destination,
         * DestinationType destinationType,
         * String exchange,
         * String routingKey,
         * @Nullable Map<String, Object> arguments
         */
        return new Binding("stock.release.stock.queue",
                Binding.DestinationType.QUEUE,
                "stock-event-exchange",
                "stock.release.#",
                null);
    }

    @Bean
    public Binding stockLockedBinding(){
        /**
         * String destination,
         * DestinationType destinationType,
         * String exchange,
         * String routingKey,
         * @Nullable Map<String, Object> arguments
         */
        return new Binding("stock.delay.queue",
                Binding.DestinationType.QUEUE,
                "stock-event-exchange",
                "stock.locked",
                null);
    }



}
